A waste gas treatment equipment for lithium battery positive and negative electrode material production and a treatment process thereof

Abstract

The application relates to the field of lithium batteries, in particular to a waste gas treatment equipment for lithium battery positive and negative electrode material production and a treatment process thereof. A technical problem: currently, a cyclone separator is usually used to separate carbon powder in flue gas, but only part of the carbon powder can be separated, and the separated carbon powder is mixed with part of asphalt particles. The temperature of the asphalt particles decreases after falling to the lower side of the cyclone separator, causing the asphalt particles to adhere to the lower side of the cyclone separator. A technical solution: a waste gas treatment equipment for lithium battery positive and negative electrode material production comprises a mounting frame, a cyclone separator and a first air pipe; a cyclone separator is fixedly connected to the middle part between the two mounting frames; and the first air pipe penetrates the front part of the cyclone separator. Most of the carbon powder in the waste gas is separated by the cyclone separator, and the remaining carbon powder is filtered by the cyclone separator, so that the finally discharged waste gas is free of carbon powder, avoiding affecting the subsequent combustion and utilization of the waste gas.

Description

Technical Field

[0001] This application relates to the field of lithium batteries, and in particular to a waste gas treatment device and its treatment process for the production of positive and negative electrode materials for lithium batteries. Background Technology

[0002] The flue gas generated during the coating and granulation process of lithium battery anode materials mainly comes from two sources: First, during the heating and mixing process in the high-temperature reactor, the asphalt powder melts in the high-temperature environment, and the light components in the asphalt volatilize to produce asphalt fumes; second, the raw carbon powder (petroleum coke, needle coke) is raw coke, and during the heating process, some of the volatiles in the raw material overflow, and these volatiles are combustible organic compounds. In addition, since the raw materials in the production process exist in the form of ultrafine powder, a high concentration of carbon powder will be carried away during the exhaust process. Therefore, the main components of the flue gas are: asphalt fumes, combustible volatile organic gases, and a high concentration of carbon powder.

[0003] Currently, cyclone separators are commonly used to separate carbon powder from flue gas. However, they can only separate a portion of the carbon powder, and the separated carbon powder will contain some asphalt particles. When the asphalt particles descend to the conical part of the cyclone separator, their temperature decreases, causing the asphalt particles to stick to the inner side of the conical part of the cyclone separator, which in turn reduces the carbon powder separation efficiency. In addition, asphalt fumes in the exhaust pipe are prone to condensation, and unseparated carbon powder and asphalt tar will stick to the inner wall of the pipe, causing pipe blockage and affecting production. Summary of the Invention

[0004] To overcome the shortcomings of current methods that typically use cyclone separators to separate carbon powder from flue gas, which can only separate a portion of the carbon powder and contain some asphalt particles, and whose temperature drops as they descend to the lower side of the cyclone separator, causing them to adhere to the lower side of the separator, this invention provides a waste gas treatment device and process for the production of positive and negative electrode materials for lithium batteries.

[0005] The technical solution is as follows: A waste gas treatment device for the production of positive and negative electrode materials for lithium batteries includes a mounting frame, a cyclone separator, a first air duct, a connecting pipe, a second air duct, and an inspection door; a cyclone separator is fixedly connected to the middle between two mounting frames; the first air duct passes through the front of the cyclone separator; a connecting pipe is fixedly connected to the upper part between the two mounting frames; the cyclone separator is connected to the connecting pipe; a second air duct passes through the right side of the connecting pipe; an inspection door is connected to the upper part of the second air duct; it also includes a ceramic filter plate, a heating unit, a toner removal unit, and a toner collection unit; a heating unit is connected to the lower part of the outer surface of the connecting pipe, and the heating unit is used to heat the waste gas; a toner removal unit is connected to the upper part of the connecting pipe; the toner removal unit is connected to the ceramic filter plate, and the ceramic filter plate is used to filter toner in the waste gas, and the toner removal unit is used to remove toner from the ceramic filter plate; a toner collection unit is connected to the lower part of the two mounting frames facing each other, and the toner collection unit is used to collect toner.

[0006] Preferably, the heating unit includes a heating cover, a third air duct, a fourth air duct, a first spiral blade, a first mounting ring, a fifth air duct, a sixth air duct, a heating cylinder, a mounting post, and a second spiral blade; the heating cover is fixedly connected to the lower part of the outer surface of the through pipe; the third air duct passes through the lower front part of the heating cover; the third air duct passes through the upper rear part of the heating cover; the first spiral blade is fixedly connected to the inner side of the heating cover; the first mounting ring is fixedly connected to the lower part of the inner side of the through pipe; the heating cylinder is fixedly connected to the inner side of the first mounting ring; the fifth air duct passes through the lower front part of the heating cylinder; the fifth air duct passes through the through pipe; the sixth air duct passes through the upper rear part of the heating cylinder; the sixth air duct passes through the through pipe; the mounting post is fixedly connected inside the heating cylinder; and the second spiral blade is fixedly connected between the mounting post and the heating cylinder.

[0007] Preferably, the toner removal unit includes a pipe cover, a hollow tube, a first gear, a first mounting plate, a first air nozzle, a second air nozzle, a first motor, a second gear, and a second mounting ring. The pipe cover is fixedly connected to the upper side of the tube. The hollow tube is rotatably connected to the middle of the pipe cover. The first motor is fixedly connected to the upper right side of the pipe cover. The first gear is fixedly connected to the outer surface of the hollow tube. The second gear is fixedly connected to the output shaft of the first motor. The second gear meshes with the first gear. The first mounting plate is fixedly connected to the lower part of the hollow tube. The first air nozzle is fixedly connected to the lower left side of the first mounting plate. The second air nozzle is fixedly connected to the lower right side of the first mounting plate. The second mounting ring is inserted into the upper inner side of the tube. The second mounting ring is inserted into an inspection door. The second mounting ring is fixedly connected to a ceramic filter plate.

[0008] Preferably, the toner collection unit includes a second mounting plate, a cylinder, a third mounting plate, a conical cylinder, a third mounting ring, a gear ring, a second motor, a third gear, a sliding rail, a fourth mounting plate, a first spring telescopic rod, a first scraper, a second spring telescopic rod, a mounting block, a first wedge block, a second wedge block, a second scraper, a first insertion / removal valve, and a second insertion / removal valve; a second mounting plate is fixedly connected to the lower part of each of the two mounting brackets facing each other; a cylinder is fixedly connected to the upper part of each of the two second mounting plates; the telescopic ends of the two cylinders are jointly fixedly connected to a third mounting plate; a conical cylinder is fixedly connected to the middle of the two third mounting plates; a third mounting ring is rotatably connected to the middle of the third mounting plate, and the conical cylinder is located inside the third mounting ring; a gear ring is fixedly connected to the outer surface of the third mounting ring; a sliding rail is fixedly connected to the rear part of the inner side of the third mounting ring; the sliding rail... A fourth mounting plate is fixed to the right side of the track; a first spring telescopic rod is fixed to the lower side of the fourth mounting plate; a first scraper is fixed to the telescopic end of the first spring telescopic rod; a second wedge block is fixed to the upper left part of the first scraper; a second spring telescopic rod is fixed to the lower right side of the sliding track; a mounting block is fixed to the telescopic end of the second spring telescopic rod; a first wedge block is fixed to the lower side of the mounting block; the first wedge block is in contact with the second wedge block; a second scraper is slidably connected inside the sliding track; the second scraper is in contact with the first scraper; the second scraper is in contact with the first wedge block; the second scraper is in contact with the conical cylinder; a second motor is fixed to the upper right part of the third mounting plate; a third gear is fixed to the output shaft of the second motor; a gear ring meshes with the third gear; a first insertion / removal valve and a second insertion / removal valve are fixed to the lower part of the conical cylinder, and the first insertion / removal valve is located above the second insertion / removal valve.

[0009] Preferably, grooves are provided on the inner side of the upper part of the pipe and the inner side of the inspection door for guiding the jet.

[0010] Preferably, the upper side of the first mounting ring is inclined to facilitate the sliding of toner.

[0011] Preferably, both the upper and lower parts of the heating cylinder are cone-shaped. The upper cone shape facilitates the sliding of carbon powder, while the lower cone shape facilitates the dispersion of exhaust gas.

[0012] Preferably, the upper side of the second mounting ring is inclined to guide the jet.

[0013] Preferably, a pull plate is provided on the upper part of the second scraper to facilitate pulling the second scraper.

[0014] This invention application proposes a waste gas treatment process for the production of positive and negative electrode materials for lithium batteries, comprising the following steps: S1: The exhaust gas is introduced into the cyclone separator through the first air duct, and the cyclone separator separates most of the carbon powder in the exhaust gas. S2: The exhaust gas is heated as it passes through the area between the mounting column and the heating cylinder, which allows the tar molecules to be fully vaporized, preparing for subsequent incineration. S3: The exhaust gas rises and passes through the ceramic filter plate, which filters out the remaining carbon powder in the exhaust gas.

[0015] The beneficial effects of the present invention are: 1. The present invention first separates most of the carbon powder in the exhaust gas through a cyclone separator, and then filters the remaining carbon powder through the cyclone separator, so that the exhaust gas discharged in the end is free of carbon powder, thus avoiding affecting the subsequent combustion and utilization of the exhaust gas.

[0016] 2. This invention removes the carbon powder accumulated inside the ceramic filter plate by spraying high-pressure gas from the first jet nozzle. By setting a groove in the upper part of the through pipe and setting the upper side of the second mounting ring as an inclined surface, the high-pressure gas sprayed from the second jet nozzle is blown towards the lower side of the ceramic filter plate, removing the carbon powder attached to the lower side of the ceramic filter plate, thus achieving thorough removal of carbon powder from the ceramic filter plate.

[0017] 3. In this invention, the conical part of a conventional dust separator is set separately, which facilitates the removal of asphalt adhering to the inner side of the conical part. The first scraper completes the removal of carbon powder, and when the first scraper is pulled out, it automatically cleans the carbon powder. In addition, a first insertion valve and a second insertion valve are set at the lower part of the conical cylinder to cool the carbon powder before it is discharged, preventing air from entering the interior and causing high-temperature carbon powder combustion. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the waste gas treatment equipment for the production of lithium battery positive and negative electrode materials according to the present invention. Figure 2 This is a schematic diagram of a second three-dimensional structure of the waste gas treatment equipment for the production of lithium battery positive and negative electrode materials according to the present invention. Figure 3 This is a partial three-dimensional structural cross-sectional view of the waste gas treatment equipment for the production of lithium battery positive and negative electrode materials according to the present invention. Figure 4 This is a partial three-dimensional structural cross-sectional view of the heating unit of the waste gas treatment equipment for the production of lithium battery positive and negative electrode materials according to the present invention; Figure 5 This is a second partial three-dimensional structural cross-sectional view of the waste gas treatment equipment for the production of lithium battery positive and negative electrode materials according to the present invention. Figure 6 This is a three-dimensional structural diagram of the carbon powder collection unit of the waste gas treatment equipment for the production of lithium battery positive and negative electrode materials according to the present invention. Figure 7 This is an enlarged schematic diagram of point A in the waste gas treatment equipment for the production of lithium battery positive and negative electrode materials according to the present invention; Figure 8 This is a partial three-dimensional structural diagram of the carbon powder collection unit of the waste gas treatment equipment for the production of lithium battery positive and negative electrode materials according to the present invention.

[0019] Explanation of reference numerals in the attached diagram: 1-Mounting bracket, 2-Cyclone separator, 3-First air duct, 4-Connecting pipe, 5-Second air duct, 6-Inspection door. 201-Heating cover, 202-Third air duct, 203-Fourth air duct, 204-First spiral blade, 205-First mounting ring, 206-Fifth air duct, 207-Sixth air duct, 208-Heating cylinder, 209-Mounting column, 2010-Second spiral blade 301-Pipe cover, 302-Hollow tube, 303-First gear, 304-First mounting plate, 305-First air nozzle, 306-Second air nozzle, 307-First motor, 308-Second gear, 309-Second mounting ring, 3010-Ceramic filter plate 401-Second mounting plate, 402-Cylinder, 403-Third mounting plate, 404-Conical cylinder, 405-Third mounting ring, 406-Gear ring, 407-Second motor, 408-Third gear, 409-Sliding rail, 4010-Fourth mounting plate, 4011-First spring telescopic rod, 4012-First scraper, 4013-Second spring telescopic rod, 4014-Mounting block, 4015-First wedge block, 4016-Second wedge block, 4017-Second scraper, 4018-First insertion / extraction valve, 4019-Second insertion / extraction valve. Detailed Implementation

[0020] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. Example

[0021] A waste gas treatment device for the production of positive and negative electrode materials for lithium batteries, such as Figure 1-8 As shown, it includes a mounting bracket 1, a cyclone separator 2, a first air duct 3, a connecting pipe 4, a second air duct 5, and an inspection door 6; the cyclone separator 2 is fixedly connected to the middle between the two mounting brackets 1; the first air duct 3 passes through the front of the cyclone separator 2; the connecting pipe 4 is fixedly connected to the upper part between the two mounting brackets 1; the cyclone separator 2 is connected to the connecting pipe 4; the second air duct 5 passes through the right side of the connecting pipe 4; the inspection door 6 is connected to the upper part of the second air duct 5. It also includes a ceramic filter plate 3010, a heating unit, a toner removal unit, and a toner collection unit; the heating unit is connected to the lower part of the outer surface of the tube 4; the toner removal unit is connected to the upper part of the tube 4; the toner removal unit is connected to the ceramic filter plate 3010; and the toner collection unit is connected to the lower part of the two mounting brackets 1 facing each other.

[0022] The heating unit includes a heating cover 201, a third air duct 202, a fourth air duct 203, a first spiral blade 204, a first mounting ring 205, a fifth air duct 206, a sixth air duct 207, a heating cylinder 208, a mounting post 209, and a second spiral blade 2010; the heating cover 201 is fixedly connected to the lower part of the outer surface of the through pipe 4; the third air duct 202 passes through the lower front part of the heating cover 201; the third air duct 202 passes through the upper rear part of the heating cover 201; and the first spiral blade 204 is fixedly connected to the inner side of the heating cover 201. Spiral blade 204; a first mounting ring 205 is fixedly connected to the lower inner side of the through pipe 4; a heating cylinder 208 is fixedly connected to the inner side of the first mounting ring 205; a fifth air duct 206 passes through the lower front part of the heating cylinder 208; the fifth air duct 206 passes through the through pipe 4; a sixth air duct 207 passes through the upper rear part of the heating cylinder 208; the sixth air duct 207 passes through the through pipe 4; a mounting post 209 is fixedly connected inside the heating cylinder 208; a second spiral blade 2010 is fixedly connected between the mounting post 209 and the heating cylinder 208.

[0023] The toner removal unit includes a tube cap 301, a hollow tube 302, a first gear 303, a first mounting plate 304, a first air nozzle 305, a second air nozzle 306, a first motor 307, a second gear 308, and a second mounting ring 309; the tube cap 301 is fixedly connected to the upper side of the through tube 4; the hollow tube 302 is rotatably connected to the middle of the tube cap 301; the first motor 307 is bolted to the upper right side of the tube cap 301; the first gear 303 is fixedly connected to the outer surface of the hollow tube 302; the first motor 307... The output shaft is fixedly connected to a second gear 308; the second gear 308 meshes with the first gear 303; the lower part of the hollow tube 302 is fixedly connected to a first mounting plate 304; the lower left side of the first mounting plate 304 is fixedly connected to a first air jet 305; the lower right side of the first mounting plate 304 is fixedly connected to a second air jet 306; the upper inner side of the through pipe 4 is inserted with a second mounting ring 309; the second mounting ring 309 is inserted into the inspection door 6; the second mounting ring 309 is fixedly connected to the ceramic filter plate 3010.

[0024] The toner collection unit includes a second mounting plate 401, a cylinder 402, a third mounting plate 403, a conical cylinder 404, a third mounting ring 405, a gear ring 406, a second motor 407, a third gear 408, a sliding rail 409, a fourth mounting plate 4010, a first spring telescopic rod 4011, a first scraper 4012, a second spring telescopic rod 4013, a mounting block 4014, a first wedge block 4015, a second wedge block 4016, a second scraper 4017, a first insertion / removal valve 4018, and a second insertion / removal valve 4019; the lower part of the two mounting brackets 1 facing each other. Each of the two second mounting plates 401 is fixedly connected to a second mounting plate 401; a cylinder 402 is bolted to the upper side of each of the two second mounting plates 401; a third mounting plate 403 is fixedly connected to the telescopic ends of the two cylinders 402; a conical cylinder 404 is fixedly connected to the middle of the two third mounting plates 403; a third mounting ring 405 is rotatably connected to the middle of the third mounting plate 403, and the conical cylinder 404 is located inside the third mounting ring 405; a toothed ring 406 is fixedly connected to the outer surface of the third mounting ring 405; a sliding rail 409 is fixedly connected to the rear inner side of the third mounting ring 405; a third mounting ring 406 is fixedly connected to the right side of the sliding rail 409. A fourth mounting plate 4010; a first spring telescopic rod 4011 is fixedly connected to the lower side of the fourth mounting plate 4010; a first scraper 4012 is fixedly connected to the telescopic end of the first spring telescopic rod 4011; a second wedge block 4016 is fixedly connected to the upper left side of the first scraper 4012; a second spring telescopic rod 4013 is fixedly connected to the lower right side of the sliding track 409; a mounting block 4014 is fixedly connected to the telescopic end of the second spring telescopic rod 4013; a first wedge block 4015 is fixedly connected to the lower side of the mounting block 4014; the first wedge block 4015 contacts the second wedge block 4016; the sliding track 409 slides inward. A second scraper 4017 is dynamically connected; the second scraper 4017 contacts the first scraper 4012; the second scraper 4017 contacts the first wedge block 4015; the second scraper 4017 contacts the conical cylinder 404; a second motor 407 is bolted to the upper right side of the third mounting plate 403; a third gear 408 is fixedly connected to the output shaft of the second motor 407; a gear ring 406 meshes with the third gear 408; a first insertion valve 4018 and a second insertion valve 4019 are fixedly connected to the lower part of the conical cylinder 404, and the first insertion valve 4018 is located above the second insertion valve 4019.

[0025] Grooves are provided on the inner side of the upper part of the through pipe 4 and the inner side of the inspection door 6 for guiding the jet.

[0026] The upper side of the first mounting ring 205 is set at an angle to facilitate the sliding of toner.

[0027] The upper and lower parts of the heating cylinder 208 are both cone-shaped. The upper cone shape facilitates the sliding of carbon powder, while the lower cone shape facilitates the dispersion of exhaust gas.

[0028] The upper side of the second mounting ring 309 is set at an angle to guide the jet flow.

[0029] The second scraper 4017 is equipped with a pull plate at the top, which facilitates pulling the second scraper 4017.

[0030] This invention application proposes a waste gas treatment process for the production of positive and negative electrode materials for lithium batteries, comprising the following steps: S1: The exhaust gas is introduced into the cyclone separator 2 through the first air duct 3, and the cyclone separator 2 separates most of the carbon powder in the exhaust gas. S2: When the exhaust gas passes through the area between the mounting column 209 and the heating cylinder 208, it is heated, which allows the tar molecules to be fully vaporized, preparing for subsequent incineration. S3: The exhaust gas rises and passes through the ceramic filter plate 3010, which filters out the remaining carbon powder in the exhaust gas.

[0031] Specifically, separating carbon powder from the exhaust gas and heating the exhaust gas includes the following steps: The exhaust gas is injected into the cyclone separator 2 through the first duct 3. The cyclone separator 2 separates most of the carbon powder in the exhaust gas, causing it to sink. The exhaust gas containing tar molecules and a small amount of carbon powder rises. When it rises and contacts the lower side of the heating cylinder 208, it is dispersed to the side by the lower side of the heating cylinder 208, that is, it rises within the annular space formed by the heating cylinder 208 and the through pipe 4. During the rising process, hot gas is introduced into the heating hood 201 and the heating cylinder 208 through the third duct 202 and the fifth duct 206. Under the action of the first spiral blade 204, the exhaust gas rises spirally within the heating hood 201, which allows the exhaust gas to be evenly dispersed within the heating hood 201. Then, it gradually and orderly flows from the fourth duct... The exhaust gas is discharged through pipe 203. Similarly, under the action of mounting column 209 and second spiral blade 2010, the hot gas spirals upward in the area between mounting column 209 and heating cylinder 208. During this upward movement of the hot gas within the annular space formed by heating cylinder 208 and pipe 4, both the inner and outer sides are heated, raising the temperature of the exhaust gas to a certain level, allowing the tar molecules in the exhaust gas to fully vaporize, preparing for subsequent incineration. The exhaust gas then continues to rise and passes through ceramic filter plate 3010, which filters out the remaining carbon powder in the exhaust gas. Finally, the exhaust gas is discharged from the second duct 5. After prolonged use, ceramic filter plate 3010 will accumulate a large amount of carbon powder, affecting the filtration effect. Therefore, in… When the exhaust gas is not filtered, the first motor 307 drives the second gear 308 to drive the first gear 303 to rotate, and the first gear 303 drives the hollow tube 302 to rotate. The hollow tube 302 drives the first mounting plate 304 to drive the first jet nozzle 305 and the second jet nozzle 306 to rotate. During the rotation, the air pump is first controlled to spray high-pressure gas from the first jet nozzle 305. The length of the first jet nozzle 305 exceeds the radius of the cylindrical ceramic filter plate 3010. Therefore, the rotating first jet nozzle 305 can spray high-pressure gas onto various parts of the ceramic filter plate 3010, causing the carbon powder inside the ceramic filter plate 3010 to fall into the cyclone separator 2. However, some carbon powder will be absorbed. The area between the filter holes on the lower side of the ceramic filter plate 3010 cannot be reached by high-pressure gas. At this time, the first jet port 305 stops jetting, and the second jet port 306 starts jetting. The gas ejected from the second jet port 306 is guided by the inclined surface on the upper side of the second mounting ring 309 to the groove in the upper part of the pipe 4, and then flows from the groove to the lower side of the ceramic filter plate 3010, causing the carbon powder adsorbed on the lower side of the ceramic filter plate 3010 to fall off. This achieves thorough removal of carbon powder from the ceramic filter plate 3010. When it is necessary to replace the ceramic filter plate 3010, the inspection door 6 can be opened, and then the second mounting ring 309 and the ceramic filter plate 3010 can be pulled out from the pipe 4 for replacement.

[0032] Specifically, the collection of the separated toner includes the following steps: Before the waste gas treatment equipment for lithium battery positive and negative electrode material production starts working, the second scraper 4017 is first pulled out from the sliding rail 409. Then, the two cylinders 402 are controlled to drive the third mounting plate 403 upward. The third mounting plate 403 drives the conical cylinder 404 upward to contact the lower side of the cyclone separator 2. In this way, the carbon powder will fall along the inner wall of the conical cylinder 404. In the initial state, the first insertion valve 4018 and the second insertion valve 4019 are both in the closed state. Thus, the carbon powder first falls on the first insertion valve 4018. When it is necessary to discharge the carbon powder... When the carbon powder is being discharged, the upper first insertion valve 4018 is opened, allowing the carbon powder to fall between the first insertion valve 4018 and the second insertion valve 4019. Then, the upper first insertion valve 4018 is closed, and after the carbon powder cools down, the lower second insertion valve 4019 is opened to discharge the carbon powder. This prevents air from entering the high-temperature carbon powder during combustion. The separated carbon powder will contain some asphalt particles. As the asphalt particles fall onto the conical cylinder 404, their temperature decreases, and the asphalt particles adhere to the conical cylinder 404. After the exhaust gas is treated, the two cylinders 402 are controlled to drive the second... The mounting plate 403 moves downward, causing the conical cylinder 404 to move upward and separate from the lower side of the cyclone separator 2. This allows the second scraper 4017 to be inserted into the sliding rail 409. During insertion, the lower end of the second scraper 4017 contacts the first wedge block 4015, forcing it to move to the right. This causes the mounting block 4014 to stretch the second spring telescopic rod 4013. Simultaneously, the rightward movement of the first wedge block 4015 forces the second wedge block 4016 to move downward. The second wedge block 4016 then moves the second scraper 4017 downward. The device is inserted into the conical cylinder 404. Using a top-down view as a reference, the second motor 407 drives the third gear 408 to rotate the gear ring 406. The gear ring 406 drives the third mounting ring 405, the sliding track 409, and the first scraper 4012 to rotate clockwise. The rotation of the first scraper 4012 scrapes off the asphalt inside the conical cylinder 404. Then, the second scraper 4017 is pulled out. During the pulling process, the asphalt attached to the right side of the second scraper 4017 is scraped off by the first scraper 4012, achieving self-cleaning of the second scraper 4017.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device for the production of positive and negative electrode materials for lithium batteries, characterized in that: The system includes a mounting bracket (1), a cyclone separator (2), a first duct (3), a connecting pipe (4), a second duct (5), and an inspection door (6); a cyclone separator (2) is fixedly connected between the two mounting brackets (1) at the middle; the first duct (3) passes through the front of the cyclone separator (2); a connecting pipe (4) is fixedly connected between the two mounting brackets (1) at the top; the cyclone separator (2) is connected to the connecting pipe (4); a second duct (5) passes through the right side of the connecting pipe (4); an inspection door (6) is connected to the top of the second duct (5); and a ceramic filter plate is also included. (3010), heating unit, toner removal unit and toner collection unit; the lower part of the outer surface of the pipe (4) is connected to the heating unit, which is used to heat the exhaust gas; the upper part of the pipe (4) is connected to the toner removal unit; the toner removal unit is connected to the ceramic filter plate (3010), which is used to filter the toner in the exhaust gas, and the toner removal unit is used to remove the toner in the ceramic filter plate (3010); the lower part of the two mounting brackets (1) facing each other is connected to the toner collection unit, which is used to collect toner; The heating unit includes a heating cover (201), a third air duct (202), a fourth air duct (203), a first spiral blade (204), a first mounting ring (205), a fifth air duct (206), a sixth air duct (207), a heating cylinder (208), a mounting post (209), and a second spiral blade (2010); the heating cover (201) is fixedly connected to the lower part of the outer surface of the through pipe (4); the third air duct (202) passes through the lower front part of the heating cover (201); the third air duct (202) passes through the upper rear part of the heating cover (201); a first spiral blade is fixedly connected to the inner side of the heating cover (201). Rotary blade (204); a first mounting ring (205) is fixedly connected to the lower inner side of the through pipe (4); a heating cylinder (208) is fixedly connected to the inner side of the first mounting ring (205); a fifth air duct (206) passes through the lower front part of the heating cylinder (208); the fifth air duct (206) passes through the through pipe (4); a sixth air duct (207) passes through the upper rear part of the heating cylinder (208); the sixth air duct (207) passes through the through pipe (4); a mounting post (209) is fixedly connected inside the heating cylinder (208); a second spiral blade (2010) is fixedly connected between the mounting post (209) and the heating cylinder (208). The toner removal unit includes a tube cap (301), a hollow tube (302), a first gear (303), a first mounting plate (304), a first air nozzle (305), a second air nozzle (306), a first motor (307), a second gear (308), and a second mounting ring (309); the tube cap (301) is fixedly connected to the upper side of the through tube (4); the hollow tube (302) is rotatably connected to the middle of the tube cap (301); the first motor (307) is fixedly connected to the upper right side of the tube cap (301); the first gear (303) is fixedly connected to the outer surface of the hollow tube (302); the first motor ( 307) The output shaft is fixedly connected to a second gear (308); the second gear (308) meshes with the first gear (303); the lower part of the hollow tube (302) is fixedly connected to a first mounting plate (304); the lower left side of the first mounting plate (304) is fixedly connected to a first air jet (305); the lower right side of the first mounting plate (304) is fixedly connected to a second air jet (306); the upper inner side of the through pipe (4) is inserted with a second mounting ring (309); the second mounting ring (309) is inserted into the inspection door (6); the second mounting ring (309) is fixedly connected to the ceramic filter plate (3010); The toner collection unit includes a second mounting plate (401), a cylinder (402), a third mounting plate (403), a conical cylinder (404), a third mounting ring (405), a gear ring (406), a second motor (407), a third gear (408), a sliding rail (409), a fourth mounting plate (4010), a first spring telescopic rod (4011), a first scraper (4012), a second spring telescopic rod (4013), a mounting block (4014), a first wedge block (4015), a second wedge block (4016), a second scraper (4017), a first insertion / removal valve (4018), and a second insertion / removal valve (4019); two mounting brackets (1 A second mounting plate (401) is fixedly connected to the lower part of each of the two opposing sides; a cylinder (402) is fixedly connected to the upper side of each of the two second mounting plates (401); a third mounting plate (403) is fixedly connected to the telescopic ends of the two cylinders (402); a conical cylinder (404) is fixedly connected to the middle of the two third mounting plates (403); a third mounting ring (405) is rotatably connected to the middle of the third mounting plate (403), and the conical cylinder (404) is located inside the third mounting ring (405); a toothed ring (406) is fixedly connected to the outer surface of the third mounting ring (405); a sliding rail (409) is fixedly connected to the rear part of the inner side of the third mounting ring (405); the right side of the sliding rail (409) is fixedly connected to... There is a fourth mounting plate (4010); a first spring telescopic rod (4011) is fixedly connected to the lower side of the fourth mounting plate (4010); a first scraper (4012) is fixedly connected to the telescopic end of the first spring telescopic rod (4011); a second wedge block (4016) is fixedly connected to the upper left side of the first scraper (4012); a second spring telescopic rod (4013) is fixedly connected to the lower right side of the sliding track (409); a mounting block (4014) is fixedly connected to the telescopic end of the second spring telescopic rod (4013); a first wedge block (4015) is fixedly connected to the lower side of the mounting block (4014); the first wedge block (4015) contacts the second wedge block (4016); the sliding track (409) slides inward. A second scraper (4017) is dynamically connected; the second scraper (4017) contacts the first scraper (4012); the second scraper (4017) contacts the first wedge block (4015); the second scraper (4017) contacts the conical cylinder (404); a second motor (407) is fixedly connected to the upper right side of the third mounting plate (403); a third gear (408) is fixedly connected to the output shaft of the second motor (407); a gear ring (406) meshes with the third gear (408); a first plug-in valve (4018) and a second plug-in valve (4019) are fixedly connected to the lower part of the conical cylinder (404), and the first plug-in valve (4018) is located above the second plug-in valve (4019).

2. The waste gas treatment equipment for the production of positive and negative electrode materials for lithium batteries according to claim 1, characterized in that: Grooves are provided on the inner side of the upper part of the through pipe (4) and the inner side of the inspection door (6) for guiding the jet.

3. The waste gas treatment equipment for the production of positive and negative electrode materials for lithium batteries according to claim 1, characterized in that: The upper side of the first mounting ring (205) is set to be inclined, which facilitates the sliding of toner.

4. The waste gas treatment equipment for the production of positive and negative electrode materials for lithium batteries according to claim 1, characterized in that: The upper and lower parts of the heating cylinder (208) are both cone-shaped. The upper part is cone-shaped to facilitate the sliding of carbon powder, and the lower part is cone-shaped to facilitate the dispersion of exhaust gas.

5. The waste gas treatment equipment for the production of positive and negative electrode materials for lithium batteries according to claim 1, characterized in that: The upper side of the second mounting ring (309) is set in an inclined shape to guide the jet.

6. The waste gas treatment equipment for the production of positive and negative electrode materials for lithium batteries according to claim 1, characterized in that: The upper part of the second scraper (4017) is provided with a pull plate, which facilitates the pulling of the second scraper (4017).

7. A waste gas treatment process for the production of positive and negative electrode materials for lithium batteries, characterized in that: The treatment process uses the waste gas treatment equipment for the production of positive and negative electrode materials for lithium batteries as described in claim 6, and includes the following working steps: S1: The exhaust gas is introduced into the cyclone separator (2) through the first air duct (3), and most of the carbon powder in the exhaust gas is separated by the cyclone separator (2); S2: The exhaust gas is heated when it passes through the area between the mounting column (209) and the heating cylinder (208), which makes the tar molecules fully gasified, preparing for subsequent incineration; S3: The exhaust gas rises and passes through the ceramic filter plate (3010), where the remaining carbon powder in the exhaust gas is filtered out.

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